import java.math.BigDecimal;

//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
public class Main {
    public static void main(String[] args) {
        double a=0.99999653501680570;
        System.out.println( new BigDecimal(1D-a).setScale(5, BigDecimal.ROUND_HALF_UP).doubleValue());
    }
}